AmericanMuscle is very proud to offer Free Standard Shipping on everything and Same Day Shipping (on most parts) if you order by 5PM EST on a business day. We ship via UPS Ground and/or USPS to all locations in the Continental 48 States absolutely FREE regardless of weight or size.

AmericanMuscle also offers Free Freight Handling to locations with loading docks in the Continental 48 States. Freight shipments going to a residential address will require a $75 residential handling fee.

Estimated delivery times for Free Standard Shipping:

• East Coast, 1-3 business days• Midwest, 2-4 business days• Southwest, 3-5 business days• West Coast, 4-6 business days

How to Install a Magnaflow Competition Catback Exhaust on Your 2011-2012 V6

Installation Time

2 hours

Shop Parts in this Guide

Installation

Installation

Warning: When working on, under, or around any vehicle exercise caution. Please allow the vehicle's exhaust system to cool before removal, as exhaust system temperatures may cause severe burns. If working without a lift, always consult vehicle manual for correct lifting specifications. Always wear safety glasses and ensure a safe work area. Serious injury or death could occur if safety measures are not followed.

Step 1: (Carefully read all instructions before installation) To remove the OEM exhaust system, unbolt the clamps fastening the muffler inlets to the over-axle pipes. Unbolt the muffler hanger brackets from the frame, and remove the mufflers from the vehicle (The brackets will be reused). Remove the over-axle pipes in a similiar fashion. Do not discard the OEM band clamps or damage the OEM rubber insulators, as they will be used to mount the new system.

Step 2: Remove the OEM hanger brackets from the mufflers and reattach them to the frame of the vehicle. (Make note of the hanger isolator orientation as improper installation will cause fitment issues). Leave all the clamps and fasteners loose for the final adjustment of the complete system. Install the new Muffler Assemblies by fitting the welded hangers into the rubber insulators in the brackets. Fit the new Inlet Pipes into place and fasten them to the catalytic converters and new Muffler Assemblies using the OEM clamps at the converters and the new supplied band clamps at the mufflers.

Step 3: With all components mounted loosely, adjust the system for overall aesthetics and clearance of frame & bodywork. (MAGNAFLOW recommends at least 1/2" of clearance between the exhaust system and any body panels to prevent heat-related body damage or fire.)

Step 4: Once a final position has been chosen for the new system, evenly tighten all fasteners from front to rear. The supplied band clamps must be VERY tight to properly align the pipes and prevent leaks (Approximately 65ft-lbs).Inspect all fasteners after 25-50 miles of operation and retighten if necessary.

**MAGNAFLOW recommends professional installation on all their products.

This guide applies to Mustang years: 2011, 2012 and Submodels: V6

Related Guides

How to Install a Magnaflow Dual Catback Exhaust on Your 2010 Mustang V6

Word on The Street

I had a great experience with American Muscle. They gave me advice on what was in the best interest of my car, and why. I had to change my order last minute, and they made it happen with ease. They called me back, when they didn't have to, and even kept me up to date with emails. I am a new classic car owner, and a little under expirenced to know what is absolutly best to better my car. I would not have been able to make the right decisions with out them. I will keep being a loyal customer to American Muscle.

Meet Our Team

My first car was a 1989 Ford Mustang Saleen Convertible that I used as my test car to learn about working on Mustangs. Foxbodies have become my passion and now I pretty much consider myself a Foxbody expert. My dream project car is a Foxbody with a 03-04 Cobra swap turbocharged. I built my current ...